Forum Discussion
Anton5032
Oct 21, 2020Copper Contributor
Hybrid EXO - The execution of cmdlet Set-SyncMailUser failed
Hello
So we have following situation:
Hybrid environment
Staff member with migrated (remote) mailbox leaves the company
license is removed
user is moved into a non-sync OU and O365 mailbox is moved into deleted users
after the grace period, mailbox is deleted
same users comes back in the company few months later (after the grace period of the mailbox) and the same AD account is re-enabled and re-synced with O365
In the on-prem exchange console the same mailbox is showing as : Remote O365 mailbox
but in EXO is nothing, no mailbox
assigning license returns error: Exchange: The execution of cmdlet Set-SyncMailUser failed..; Exchange: An unknown error has occurred. Refer to correlation ID
and if try to perform new-moverequest also returns error:
The operation couldn't be performed because object 'returning-staff@abc.xyz' couldn't be found on '........PROD.OUTLOOK.COM'.
I checked the Error field via MSOL, but showing nothing, literally empty space
Also checked the "msExchHomeServerName" its all clear
Not sure what else to look for/change
Risual.com have a nice blog on how to resolve this:
https://www.risual.com/2019/03/exchange-online-unknown-error-has-occurred-in-hybrid-environment/
- Yasin10Copper Contributor
Risual.com have a nice blog on how to resolve this:
https://www.risual.com/2019/03/exchange-online-unknown-error-has-occurred-in-hybrid-environment/
- Anton5032Copper ContributorThanks Yasin10
That blog did the trick and now everything is clear and operational
It is a shame MS havent provided faster (more automated) way to do this. I cant believe we are the only one out there having contractors come and go in the business all the time. Its kinda dumb to have to go through all the steps everytime when that happens.
Thank you again!
Did you run a Full sync cycle after moving the user?
- Anton5032Copper Contributor
Yes, several times pushed the sync
Otherwise the user wouldnt appear in the O365 User`s list